LMV324IDRG4 Equivalent & Substitute Parts

Part Overview

The LMV324IDRG4 is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four independent circuits in a 14-SOIC surface-mount package. This device is designed for rail-to-rail output applications with a supply voltage range of 2.7 V to 5.5 V and operates across an extended temperature range of -40°C to 125°C.

The LMV324IDRG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. Substitute parts must maintain compatibility with existing circuit designs while meeting the same electrical performance specifications and physical packaging requirements.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Slew Rate	1	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	15	nA
Voltage - Input Offset	1.7	mV
Current - Supply (x4 Channels)	410	µA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the LMV324IDRG4 are classified based on strict adherence to the following critical parameters:

Primary Substitution Criteria:

Number of Circuits: 4 independent amplifier circuits
Output Type: Rail-to-Rail configuration
Package Type: 14-SOIC surface-mount form factor
Supply Voltage Range: Minimum 2.7 V, Maximum 5.5 V
Operating Temperature Range: -40°C to 125°C (or compatible subset)
RoHS3 Compliance and MSL Level 1

Secondary Compatibility Parameters:

Slew Rate: 1 V/µs (baseline reference)
Gain Bandwidth Product: 1 MHz (baseline reference)
Current - Input Bias: 15 nA (baseline reference)
Voltage - Input Offset: 1.7 mV (baseline reference)

Substitute parts are grouped into two categories:

Category 1: Direct Texas Instruments Equivalents Parts sharing identical base product number (LMV324) with matching electrical specifications and packaging. These include packaging variants (Tube, Cut Tape & Digi-Reel) of the same silicon design.

Category 2: Cross-Manufacturer Alternatives Parts from alternative manufacturers (Analog Devices, Rohm Semiconductor, UMW) that meet the core substitution criteria while potentially offering different performance characteristics in secondary parameters.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Number of Circuits	Output Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (µA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
LMV324IDRG4	Texas Instruments	General Purpose	4	Rail-to-Rail	1	1	15	1.7	410	40	2.7	5.5	-40 to 125	14-SOIC	Discontinued
LMV324M/NOPB	Texas Instruments	General Purpose	4	Rail-to-Rail	1	1	15	1.7	410	160	2.7	5.5	-40 to 125	14-SOIC	Active
LMV324MX/NOPB	Texas Instruments	General Purpose	4	Rail-to-Rail	1	1	15	1.7	410	160	2.7	5.5	-40 to 125	14-SOIC	Active
LMV324IDR	UMW	Voltage Feedback	4	Rail-to-Rail	—	1	0.01	0.8	45	25	2.1	5.5	-25 to 85	14-SOIC	Active
LPV324M/NOPB	Texas Instruments	General Purpose	4	Rail-to-Rail	0.1	0.152	2	1.5	28	16	2.7	5	-40 to 85	14-SOIC	Active
LPV324MX/NOPB	Texas Instruments	General Purpose	4	Rail-to-Rail	0.1	0.152	2	1.5	28	16	2.7	5	-40 to 85	14-SOIC	Active
AD8544ARZ	Analog Devices Inc.	General Purpose	4	Rail-to-Rail	0.92	1	0.004	1	45	30	2.7	5.5	-40 to 125	14-SOIC	Active
AD8544ARZ-REEL	Analog Devices Inc.	General Purpose	4	Rail-to-Rail	0.92	1	0.004	1	45	30	2.7	5.5	-40 to 125	14-SOIC	Active
BU7244F-E2	Rohm Semiconductor	CMOS	4	Rail-to-Rail	0.4	0.9	0.001	1	360	12	1.8	5.5	-40 to 85	14-SOIC	Active
BU7487F-E2	Rohm Semiconductor	CMOS	4	Rail-to-Rail	10	10	0.001	1	6000	12	3	5.5	-40 to 105	14-SOIC	Active
LMR934F-GE2	Rohm Semiconductor	General Purpose	4	Rail-to-Rail	0.35	1.4	5	1	250	90	1.8	5	-40 to 85	14-SOIC	Active

Engineering Selection Recommendations

Tier 1: Direct Substitutes (Highest Compatibility)

LMV324M/NOPB and LMV324MX/NOPB are direct functional equivalents manufactured by Texas Instruments. Both parts share identical electrical specifications with the LMV324IDRG4, including slew rate, gain bandwidth product, input bias current, and input offset voltage. The primary difference is packaging format: LMV324M/NOPB is supplied in Tube packaging, while LMV324MX/NOPB is supplied in Cut Tape & Digi-Reel format. Both are ROHS3 compliant with MSL Level 1 rating. These parts are currently in active production status with substantial inventory availability (2202 and 177800 units respectively).

Tier 2: Cross-Manufacturer Alternatives (Electrical Compatibility)

AD8544ARZ and AD8544ARZ-REEL (Analog Devices Inc.) maintain full compatibility with the LMV324IDRG4 across all critical parameters: four circuits, rail-to-rail output, 2.7 V to 5.5 V supply range, and -40°C to 125°C operating temperature. The slew rate (0.92 V/µs) and gain bandwidth product (1 MHz) are within acceptable tolerance of the original specification. Input bias current is significantly lower (4 pA versus 15 nA), and input offset voltage is lower (1 mV versus 1.7 mV), representing improved performance characteristics. Both variants are ROHS3 compliant with MSL Level 1 and active production status.

Tier 3: Conditional Substitutes (Parameter Deviations)

LPV324M/NOPB and LPV324MX/NOPB are Texas Instruments products suitable only for applications where reduced slew rate (0.1 V/µs) and lower gain bandwidth product (152 kHz) are acceptable. These parts offer significantly lower supply current (28 µA versus 410 µA), making them suitable for power-constrained applications. Operating temperature range is reduced to -40°C to 85°C, and maximum supply voltage is 5 V. Use only when application requirements permit these deviations.

LMV324IDR (UMW) is a voltage feedback amplifier variant with reduced operating temperature range (-25°C to 85°C) and lower maximum supply voltage (5.5 V maintained). Input bias current is substantially lower (10 pA), and supply current is reduced (45 µA). This part is suitable only for applications operating within the narrower temperature range.

BU7244F-E2 (Rohm Semiconductor) is a CMOS amplifier with extended lower supply voltage limit (1.8 V minimum) but reduced output current per channel (12 mA versus 40 mA). Operating temperature range is -40°C to 85°C. Use only when lower supply voltage operation is required and output current requirements are compatible.

BU7487F-E2 (Rohm Semiconductor) is a high-speed CMOS amplifier with significantly elevated slew rate (10 V/µs) and gain bandwidth product (10 MHz). Supply current is substantially higher (6 mA). Minimum supply voltage is 3 V. Use only for high-speed applications requiring these performance characteristics.

LMR934F-GE2 (Rohm Semiconductor) is a general-purpose amplifier with extended lower supply voltage limit (1.8 V minimum) and higher output current per channel (90 mA). Slew rate is reduced (0.35 V/µs), and operating temperature range is -40°C to 85°C. Use when lower supply voltage and higher output current are required.

Frequently Asked Questions (FAQ)

Q1: Can LMV324M/NOPB directly replace LMV324IDRG4 in existing designs?

Yes. LMV324M/NOPB is a direct functional equivalent with identical electrical specifications. The only difference is packaging format (Tube versus the original packaging). Pin configuration, electrical performance, and operating characteristics are identical. No circuit modifications are required.

Q2: What is the difference between LMV324MX/NOPB and LMV324M/NOPB?

Both parts are electrically identical. The difference is packaging and distribution format: LMV324M/NOPB is supplied in Tube packaging for manual handling, while LMV324MX/NOPB is supplied in Cut Tape & Digi-Reel format for automated assembly. Select based on manufacturing process requirements.

Q3: Why does LMV324M/NOPB show higher output current (160 mA) than the original LMV324IDRG4 (40 mA)?

This represents a specification improvement in the active production variant. The higher output current capability does not affect compatibility; circuits designed for 40 mA output will function correctly with the higher-capability part. This is a beneficial parameter change.

Q4: Can AD8544ARZ replace LMV324IDRG4?

Yes, with full compatibility. AD8544ARZ meets all critical substitution criteria: four circuits, rail-to-rail output, 2.7 V to 5.5 V supply range, and -40°C to 125°C operating temperature. The slew rate (0.92 V/µs) and gain bandwidth product (1 MHz) are within specification tolerance. Input bias current and input offset voltage are actually superior (lower). Pin configuration is identical.

Q5: Is LPV324M/NOPB suitable as a substitute?

LPV324M/NOPB is suitable only for applications where the reduced slew rate (0.1 V/µs versus 1 V/µs) and lower gain bandwidth product (152 kHz versus 1 MHz) are acceptable. The operating temperature range is also reduced to -40°C to 85°C. Use only if application requirements permit these deviations. This part is not a direct substitute for general-purpose applications.

Q6: What are the advantages of BU7244F-E2 over LMV324IDRG4?

BU7244F-E2 offers extended lower supply voltage operation (1.8 V minimum versus 2.7 V) and significantly lower supply current (360 µA versus 410 µA). However, output current per channel is reduced (12 mA versus 40 mA), and operating temperature range is narrower (-40°C to 85°C). Use only when lower supply voltage is required and output current limitations are acceptable.

Q7: When should BU7487F-E2 be selected?

BU7487F-E2 is a high-speed alternative with slew rate of 10 V/µs and gain bandwidth product of 10 MHz, compared to 1 V/µs and 1 MHz for the original part. Select this part only for applications requiring high-speed operation. Note that supply current is substantially higher (6 mA), and minimum supply voltage is 3 V.

Q8: Are all substitute parts ROHS3 compliant?

Yes. All substitute parts listed are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original LMV324IDRG4 compliance status.

Q9: What is the pin configuration compatibility?

All substitute parts use the 14-SOIC package with identical pin configuration. Physical and electrical pin assignments are compatible across all listed alternatives. No PCB layout modifications are required.

Q10: Which substitute offers the best performance improvement?

AD8544ARZ offers the most balanced performance improvement: identical slew rate and gain bandwidth product to the original, but with significantly lower input bias current (4 pA versus 15 nA) and lower input offset voltage (1 mV versus 1.7 mV). It maintains the full -40°C to 125°C operating temperature range and 2.7 V to 5.5 V supply range. This part is recommended for applications where improved input characteristics are beneficial.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message